The effect comes from Jamaican dub and reggae sound system culture, where operators used handmade siren boxes and effects units during live dances. As dub spread from Jamaica to the UK and beyond in the 1970s and 1980s, the siren became a signature cue alongside echoes and reverb. It later moved into jungle, drum and bass, dancehall and internet edits, where its rising wail still works as a universal signal for excitement, warning or a heavy moment about to land.